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São Tomé

$1,472+ Cheap flights from Dulles Intl (IAD) to São Tomé (TMS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — TMS
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Dulles Intl to São Tomé

Cheapest flights from Dulles Intl to São Tomé
Explore the most affordable flight options available from Dulles Intl to São Tomé. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This TAP AIR PORTUGAL deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/35:30 pm
IAD
-
TMS
2 stops19h 35m
TAP AIR PORTUGAL
Fri 2/138:00 pm
TMS
-
IAD
2 stops24h 15m
TAP AIR PORTUGAL
Deal found 1/27$1,472
This FlightHub deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1810:00 pm
IAD
-
TMS
3 stops39h 05m
Multiple Airlines
Wed 2/258:00 pm
TMS
-
IAD
2 stops24h 30m
Multiple Airlines
Deal found 1/27$1,632
This oojo deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1810:00 am
IAD
-
TMS
3 stops26h 40m
Ethiopian Air
Wed 2/257:00 am
TMS
-
IAD
4 stops30h 00m
Ethiopian Air
Deal found 1/27$1,766
This Ethiopian Air deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ethiopian Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/289:20 pm
IAD
-
TMS
2 stops16h 20m
Ethiopian Air
Fri 10/27:00 am
TMS
-
IAD
4 stops29h 55m
Ethiopian Air
Deal found 1/26$1,954
This BusinessClass deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/146:30 pm
IAD
-
TMS
2 stops19h 35m
TAP AIR PORTUGAL
Sat 3/2110:25 pm
TMS
-
IAD
2 stops36h 53m
TAP AIR PORTUGAL
Deal found 1/28$2,086

Find flight deals from Dulles Intl to São Tomé

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to São Tomé (TMS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,632
(FlightHub)
Provider with most accurate pricing for Washington, D.C. (WAS)-Sao Tome Is flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Sao Tome Is flights.
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From Washington, D.C. Dulles Intl to Sao Tome Is
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to São Tomé that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to São Tomé that are best for you.

Fly from

Dulles Intl

Fly to

São Tomé

Route

Depart

Return

Price

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Wed 2/18

10:00 pm-6:05 pm

3 stops39h 05m

Sao Tome Is

Wed 2/25

8:00 pm-3:30 pm

2 stops24h 30m

$1,632

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Wed 2/18

10:00 am-5:40 pm

3 stops26h 40m

Sao Tome Is

Wed 2/25

7:00 am-8:00 am

4 stops30h 00m

$1,766

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Sat 3/14

6:30 pm-6:05 pm

2 stops19h 35m

Sao Tome Is

Sat 3/21

10:25 pm-7:18 am

2 stops36h 53m

$2,086

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Sat 3/14

10:00 pm-12:10 pm

3 stops34h 10m

Sao Tome Is

Sat 3/21

10:25 pm-8:54 pm

3 stops26h 29m

$2,809

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Best time to book a flight from Dulles Intl to São Tomé

Have a flexible travel schedule? Discover the best time to fly to São Tomé from Dulles Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to São Tomé. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to São Tomé from Washington, D.C. Dulles Intl?

    Sao Tome Is (TMS) is the airport you will fly into if you book a flight from Washington, D.C. Dulles Intl to São Tomé. You should not have trouble finding flights to Sao Tome Is from Washington, D.C. Dulles Intl; the airport handles an average of 0 inbound flights from Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the São Tomé airport from Washington, D.C. Dulles Intl. It is only a 3.1 mi journey from Sao Tome Is (TMS) to São Tomé’s city center.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to São Tomé?

    Ethiopian Air and TAP AIR PORTUGAL can get you from Washington, D.C. Dulles Intl Airport to São Tomé in just under 19h 35m. Your travel time can differ by up to 7h 05m. The distance from Washington, D.C. Dulles Intl Airport to São Tomé is about 5884 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Dulles Intl to São Tomé that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to São Tomé flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to São Tomé?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to São Tomé.

  • Can I find deals for business class flights from Dulles Intl to São Tomé?

    Yes. Cheapflights offers flight deals from Dulles Intl to São Tomé by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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